Thill-coupling



(N0 Modem Y W.. H. TIBBITS.

. THILL COUPLING. I No. 368,119. I Patented Aug. 9, 1887.

WITNESSES;

' NTOR:

ATTORNEYS.

U IT-ED STATES PATENT OFFICE.

WVILLIAM HENRY TIBBITS, OF CRAB OR OHARD, NEBRASKA.

THILL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 368,119, dated August 9, 1887.

Application filed January 11,1887. Serial No. 254,068. (No model.)

To aZZ whom it may concern.-

Be it known that I, WILLIAM HENRY TIB 1311s, of Crab Orchard, in the county of J ohnson and State of Nebraska, have invented a new and useful Improvement in Anti Rattling Thin-Couplings, of which the following is a specification.

My invention is in the nature of an improved thillcoupling which dispenses with the use of a screwnut on the bolt that secures the thills, and which same construction also prevents the rattling of the coupling; and it consists in the peculiar construction and ar rangement of parts which I will now proceed to describe.

Figure l is a side view, partly in section. Fig. 2 is a front view, showing the wrench H applied for disconnecting the parts; and Fig. 3 is a side view of the pivot-bolt.

In the drawings, A represents the clip, which is designed to be fastened around the axle in the usual way. This clip is formed in one piece, with ears orlugs a at, whose outer ends are connected by a pendent stirrup, I), also formed in the same piece with said lugs and clip. The outer ends of the lugs are pierced horizontally with a hole to receive the pivot-bolt B, which latter also passes through the hinge sleeve of the thilliron O, to which the thills or shafts are attached in the usual way.

The liinge sleeve of the thill-iron is slotted at c, on its under side, transversely in a vertical plane about its middle, and coinciding with this slot there is formed in the pivot-bolt a notch, d. In the pendent stirrup b from the lugs is seated a soft-rubber block, D, or other suitable form of spring, and embracing the top and sides of said rubber block is arranged a yoke, E, whose lower ends are connected by a bolt, e, below the stirrup. The upper part of this yoke is providedwith a flange, f, whose width is less than that of the slot in the hingesleeve and the notch in the pivot-bolt. The

elastic pressure of the rubber block, it will be seen, forces this yoke upwardly and causes its flange to pass through the slot in the hingesleeve and enter the notch in the pivot-bolt, thus performing the two important functions of first locking the pivot-bolt, so that it cannot be withdrawn, thus dispensing with a screwnut, and, secondly, of pressing against both the pivot-bolt'and the sleeve and holding the parts tightly, so that they cannot rattle.

For disconnecting the parts of my thillcoupling a cam-hook, H, is fitted between the bolt 6 and the bottom of the stirrup and the yoke, as shown in Fig. 2, and its locking-flange is drawn down by the leverage which this hook exerts, so that the locking-flange f is drawn out of the notch in the pivot-bolt, permitting the latter to be withdrawn to disconnect the parts.

Having thus described my invention, what I claim as new is'- 1. An anti-rattling thillcoupling consisting of a clip having perforated lugs with a pendent stirrup connecting their ends, a notched pivot-bolt passing through said lugs, a slotted hinge-sleeve hung upon the pivotbolt, a spring seated in the pendent stirrup, and a locking device interposed between the spring and sleeve and pressed by said spring through the slot in the sleeve and into the notch in the pivotbolt, substantially as and for the purpose described.

2. An anti-rattling thill-coupling consisting of a clip having perforated lugs a a, with. pendent stirrup b, formed in one piece, the notched pivot-bolt B, the thill-iron G, with slotted sleeve, the spring D, and the locking- Q yoke E, with flangef and bolt 6, substantially as shown and described, and for the purpose set forth.

\VILLIAM HENRY TIBBITS.

Witnesses:

W. S. DILWOR'IH, O. W. ROBERTS. 

